If residents of remote towns in Alaska contracted the diphtheria disease in 1925 and there were no sled dogs, several consequences would have occurred:
1. Delayed Medical Supplies:
2. Slower Response Time:
3. Increased Spread of Disease:
4. Higher Mortality Rate:
In summary, the absence of sled dogs in 1925 would have resulted in delayed medical supplies, slower response time, increased spread of the disease, and a higher mortality rate among the residents of remote towns in Alaska who contracted the diphtheria disease.